This is a back-and-forth in the oven dish, but well worth the hassle
What you need
Broccoli
Romanesco
Leak
Brussels sprouts
Creme fraiche
Blue cheese
Grated cheese (mozzarella)
Vegetable bouillon cube
Chop the Brussels sprouts and the stems of the broccoli and the romanesco. Gently boil in vegetable broth for 5 minutes
Cut and add the leek, boil for another 5 minutes
Pour in an ovenproof dish and place the flower parts of the broccoli and romanesco on top
Roast for 10 minutes in 200C oven, mix blue cheese and creme fraiche (microwave is helpful, 40 seconds on medium power)
Pour the blue cheese mixture on top
Put back in the oven for 5-10 minutes, then sprinkle grated cheese on top
Put back in the oven
Ready to serve